powell



J. G. POWELL.

MOLD FOR UMBRELLA NOTGHES AND RUNNERS. No. 314,395.. Patented Mar. 24, 1885.

(No Model.) 3 eeeee s-Sheet 2.

J. G. POWELL.

' MOLD FOR UMBRELLA NOTGHES AND RUNN No. 314,395. Patented Ma w 1885.

(No Model.)

7 3 SheetsSheet 3. J. G. POWELL.

MOLD FOR UMBRELLA NOTOHES AND RUNNERS.

No. 314,395. Patented Mar. 241 1885.

III A ly 1M i ir o STATES MOLD FOR, u'MBREL'LAsi'o ot-tes AND Bus ness.

SPECl P IGA TI ON forming; part ,of Letters was No. 314,395, a reemareltze lees,

' Application filed November 30, 1883. iRenew'cdJanua'ry 1 9, 1885 (X0 model.)

To all whom it mjaj/ concern: Be it known that l, JOHN G. POWELL, a cilizen of the United States,and a resident of Philadelphia, Pennsylvania, have-invented certain Improvements in the Manufacture of 'Molds for Umbrella Notches and Runners, of

which the following is a specification.

My invention consists of a metal mold wherein to east, under pressure, notches and runners for umbrellas and parasols, the mold being constructed substantially in the manner described hereinaftenso that the notch or runher will be complete and finished ready for use on leaving the said mold.

In the accompanyingdrawings, Figure 1, Sheet 1, is a perspective view of a finished umbrella-notch; Fig. 2, a sectional perspective of the mold for producing the same as it appears when the cap is detached fromthe body and parts of the mold open; Fig. 3, an exterior perspective view of the mold; Fig. 4, Sheet 2,avertieal section, on an enlarged scale, of the mold as it appears when closed and containing an umbrella-notch; Fig. 5, Sheet 3, a sectional view illustrating a section of a modified mold; and Fig. 6, a perspective view of the same.

Referring, in the first instance, to Figs. 1, 2, 3, and 4., A, Fig. 1, is an umbrella-notoh which is made in the mold, and which differs from an ordinary notch in having throughout a uniform mold-finished surface, and in the alloy of which it is composed, ordinary notches being made of brass, while that shown in Fig. 1 is supposed to be an alloy which will melt at such a low temperature that it can be cast in a metal mold,but which, when cold, is as hard or nearly as hard as brass.

For this notch as an article of manufacture I have made a separate application fora patcut.

The mold shown in Figs. 2, 3, and 4 is composed of the following parts, namely: the body B, the cylindrical plunger D, adapted to slide in a corresponding opening in the said body, the segments E E, which are in the present instance hinged to the body, and the cap F. The relation of these parts to each other when the mold is closed Will be best understood by referring to Fig. In the under side of the the inner and outerfdiameters of the cylin cylindrical portion. i, ofthe cap exteudingbe low the under surface, m, of the same. I On the notch A, the upper ends of these projecr of the cap when the mold is closed.

the ribs of the two segments, when closed, fitting into notches t in the projections 7 and determiningthe annular groove ein the rim 6 of the notch A. \Vhen the mold is closed, as shown in Fig. 4., the space inclosed is of the exact shape of the complete notch A, the diameter of the rim 1) of the notch being determined by the portions 00 w of the segments, the circumferential groove, as before remarked, by the sen1i-annular ribs (1 of the segments, the length of the cylindrical portionof thenotch by the annulargroovehin the cap,and the thickness of the grooved rim 1) of the notch partly by the cap and partly by the surface of the annular rib p of the body,which, when the mold is closed, is in the same plane as the upper end of the plunger 1), which is in contact with the central projection, i, of the cap. After the metal has been forced through a gate, w, in the cap into the cavity of the mold, the cap is detached from the body, the segments are opened, and the plunger l) is used as an ejector for pushing the finished notch from the projections n.

It will be seen on reference to Fig. 4 that when the mold is closed the segments bear against the edge of the annular rib p on the body, and that the cap overlaps the segments, which cannot, therefore, be opened until the cap is removed.

As regards the external shape of the mold, it may be altered without departing from my body in different ways. In the present instance the cap has hooked arms g g, thelower ends, 9, of which catch on the under side of lugs on the body.

eapisan annular recess, l1,whiehdetermines tions being in contact with the under surface V Each'of the segments E E has a semi-annular rib, Q,

9 invention, and the cap may be confined to the drioal portiona of the notch A, thefcentral .55 the upper surface of the body B, and concentrio with the central opening oftlris body, is'

an annular rib, p, on whiohare arranged as many projections n as the'reare radial'slotsin 7 body of the mold, are on the top of theplun- I ger D, which is arranged to slide in the body B, the projections being arranged, when the plunger is elevated, to enter slots in the segments E E, in which,when closed,is an annular recess corresponding with the rim of thenotch A, the annular rib qfor forming the circumferential groove in the rim being partly in one segment and partly in the other segment. The cap F in this case is in two parts, one carried by one segment and the other by the other segment.

When the mold has been closedthat is, when the straight edges of the segments are in contact with each otherand the plunger has been elevated until its upper surface is in contact with the under side of the segments,the mold willincloseaspace corresponding exactly with the notch A, Fig. 1, a cylindrical projection, 'i, on the plunger, and a circular opening, j, made partly in one segment and partly in the other segment, determining the cylindrical portion of the notch. After the metal has been introduced into the mold under pressure sideof the body.

In referring to umbrella notches in this specification it should be understood that the term is intended to include runners, which differ from notches only in the length of the cylindrical portion of the stem.

I claim as'my invention- A mold in which are combined the following elements, namely: first, the body B; second, the cylindrical plunger D, adapted to and arranged to slide in the said body; third, the

radial projections n; fourth, the cylindrical projection or core i,- fifth, the movable segments E E, each provided with an internal rib, q; and,siXth, a cap, F, all substantially as set forth.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

JOHN G. POWVELL.

Witnesses: I

JOHN E. PARKER, HARRY SMITH. 

